title: Profiles of Mycobacterium communities under polycyclic aromatic hydrocarbon contamination stress in the Shenfu Irrigation Area, northeast China.
abstract: Indigenous Mycobacterium communities play an important role in the degradation of polycyclic aromatic hydrocarbons (PAHs), but little is known about Mycobacterium distribution in situ at PAH-contaminated sites. In this study, the diversity and distribution of Mycobacterium communities were investigated in sediments and soils at sites upstream, midstream, and downstream of an oil-sewage irrigation channel, using denaturing gradient gel electrophoresis (DGGE). The results show that heavy PAH contamination in upstream sites negatively affected Mycobacterium community diversity compared with midstream and downstream sites in all 3 sample types (sediments, corn field soils, and rice field soils). There was a correlation between the distribution of Mycobacterium communities and PAH contamination, as indicated by canonical correspondence analysis. Mycobacterium diversity and distribution was found to vary between the 3 sample types.
authors.affiliation: State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, People's Republic of China.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Li
authors.forename: Xu
authors.initials: X
authors.lastname: Li
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Xiujuan
authors.initials: X
authors.lastname: Wang
authors.forename: Jian
authors.initials: J
authors.lastname: Sun
authors.forename: Zhencheng
authors.initials: Z
authors.lastname: Su
authors.forename: Huiwen
authors.initials: H
authors.lastname: Zhang
authors.forename: Peijun
authors.initials: P
authors.lastname: Li
mesh_terms: D002681:China; D058645:Denaturing Gradient Gel Electrophoresis; D009161:Mycobacterium / Q000145:classification* / Q000302:isolation & purification / Q000378:metabolism; D010802:Phylogeny; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000378:metabolism*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants